You're looking for a paper or documentation on the CH340 driver for Windows 11. Here are a few options:
Screenshot of Device Manager showing "USB-SERIAL CH340 (COM4)" ✅
When you try to run the installer, Windows 11 SmartScreen might pop up saying "Windows protected your PC."
For the most reliable and up-to-date version, you should download the driver directly from the manufacturer, .
This is a classic sign of a .